Is it possible to make an account rule's condition based on project number starting alphabet?

Dear,

For PO charge account, Is it possible to make an account rule's condition based on project number's starting alphabet?

Currently, PO charge account can be differentiated by project number is null/is not null, but didnt find the operator like starting with/contain.

For example, If user enter the project number start with T or project number contains T, then leverage a different mapping set.

Thank you!